Gamma-band synchronization in visual cortex predicts speed of change detection

Article Abstract:

A study shows that behavioral response times to a stimulus change can be predicted specifically by the degree of gamma-band synchronization among those neurons in monkey visual area V4 that are activated by the behaviorally relevant stimulus. It is found that enhanced neuronal gamma-band synchronization and shortened neuronal response latencies to an attend stimulus seem to have direct effects on visually triggered behavior, reflecting an early neuronal correlate of efficient visuo-motor integration.

Author: Mitra, Partha P., Desimone, Robert, Womelsdorf, Thilo, Fries, Pascal
Monkeys, Visual cortex, Cognition in children, Cognitive development

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How sleep affects the developmental learning of bird song

Article Abstract:

The effects of night sleep on song development in the zebra finch by recording and analyzing the entire song ontogeny is described. During periods of rapid learning a pronounced deterioration in song structure after night-sleep in observed.

Author: Tchernichovski, Ofer, Mitra, Partha P., Deregnaucourt, Sebastien, Feher, Olga, Pytte, Carolyn
Learning in animals, Animal learning, Zebra finch, Bird songs

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Neurons of imitation

Article Abstract:

The article discusses the lately identified brain neurons, which contribute to imitation in all living beings. The findings show that these neurons respond in similar manner, when the songbirds sing and when they hear a similar song.

Author: Tchernichovski, Ofer, Wallman, Josh
Imitation, Songbirds

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Subjects list: Psychological aspects, Research, United States, Behavior
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